A Series Gear Pumps General Purpose Pumps for Pressure Lubrication, Hydraulic Service, Fuel Supply, and General Transfer Unmatched Versatility & Ruggedness 12 Sized Available3/8" - 2" NPT PORT No Need for a Gear Box.Runs at motor speed. The A Series just works. The Roper Pump A Series external gear pump is your best bet for general purpose liquid transfer. It’s more simple, more cost-effective, and more versatile than competing technologies.Avoid the unnecessary maintenance and overhung load of internal gear pumps.Avoid expensive repairs from delicate vanes in vane pumps. Who Uses the A Series pump? Industries Oil IndustryEnergy IndustryAsphalt IndustryFood & Beverage Industry Applications Tank Battery Re-circulationFuel SupplyFuel AdditivesBearing Lubrication 0 sizes available 0 " NPT PORT (UP TO) 0 GPM (UP TO) 0 PSI (UP TO) A Series Documents A Series A Series Curves & Technical Data Documents Configuration Options Complete C-face or foot mount flangeoptional integrated pressure relief valveMechanical seals or lip sealsMany unique, application-specific materials of construction available Typical Applications Tank battery recirculation Fuel supply for generator sets Boiler feed day tanks Fuel additive dosing Pressure lubrication for bearings Standard Materials of Construction Cast iron housings Hardened steel shafts Ductile iron gears Bronze journal bearings Buna Elastomer or graphite impregnated Teflon® packing